Setup Guide

Table Of Contents
Configuring IPv6 Flow-Based Mirroring
This section describes how to configure IPv6 flow-based mirroring in the monitor session.
You can configure IPv6 flow-based mirroring under monitor session. The IPv6 flow-based mirroring is supported in SPAN,
RSPAN, and ERSPAN monitor sessions. By default, all mirror ACLs is considered as implicit permit. The Dell EMC Networking
OS creates a separate logical group out of a physical CAM region for IPv6 mirroring. In order to enable this feature, you have
to configure ipv4udfmirracl CAM region, which supports IPv6 mirror ACL along with IPv4 mirror ACLs. Both IPv4 and IPv6
mirror ACLs can co-exist in a monitor session.
Pre-requisite
Before you configure IPv6 flow-based mirroring, allocate a CAM ipv4udfmirracl region, so that you can apply the ACL that
is created to the monitoring session.
● Allocate a CAM region using the following command.
cam-acl l2acl number ipv4acl number ipv6acl number ipv4qos number l2qos number l2pt
number ipmacacl number vman-qos number [ipv4udfmirracl number]
NOTE:
If you configure IPv6 mirroring without configuring ipv4udfmirracl CAM region, following error message appears.
% Error: IPv6 Mirror-Access-list not supported on this CAM profile. Please remove the
ipv6 access-group.
Enabling IPv6 Flow-Based Monitoring
To enable IPv6 flow-based mirroring, use ipv6 access-group access-list-name command under monitor session.
You can apply a new IPv6 ACL in a monitor session, when an ACL is already applied. If so, the new ACL will replace the old and
overwrite it.
1. Create a monitoring session.
CONFIGURATION mode
monitor session session-id
2. Enable flow-based monitoring for a monitoring session.
MONITOR SESSION mode
flow-based enable
3. Specify the source and destination port and direction of traffic.
MONITOR SESSION mode
source sourceβ€”port destination destination-port direction rx
4. For flow-based monitoring with ACL applied on the interface, define IPv6 access-list rules that include the monitor
keyword. Dell EMC Networking OS only considers traffic matching rules with the monitor keyword for flow-based
monitoring with ACL applied on the interface.
CONFIGURATION mode
ipv6 access-list
To define access lists, see the Access Control Lists (ACLs) chapter.
5. Apply the IPv6 ACL to the monitored port.
MONITOR SESSION mode
ipv6 access-group access-list-name
Following is an example configuration for flow-based monitoring mirroring ACL applied on an interface.
DellEMC(conf)#monitor session 10
DellEMC(conf-mon-sess-10)#flow-based enable
DellEMC(conf)#ipv6 access-list testflow
DellEMC(config-ext-nacl)#seq 5 permit icmp any any count bytes monitor
DellEMC(config-ext-nacl)#seq 10 permit ipv6 10::/64 any count bytes monitor
DellEMC(config-ext-nacl)#seq 15 deny udp any any count bytes
DellEMC(config-ext-nacl)#seq 20 deny tcp any any count bytes
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Port Monitoring